What can be possible threats to vision?

Occasionally, people describe persistent spots or small lines floating in their eyes. It can be very annoying, and in some cases, a threat to vision. Dr. Bob Overholt tells us what we need to watch out for.

http://www.wbir.com/video/2628235399001/1/What-can-be-possible-threats-to-visionhttp://download.gannett.edgesuite.net/wbir/brightcove/29913744001/201308/762/29913744001_2628248033001_th-521a0d90e4b0724f86ec3817-672293879001.jpg?pubId=29913744001What can be possible threats to vision?Occasionally, people describe persistent spots or small lines floating in their eyes. It can be very annoying, and in some cases, a threat to vision. Dr. Bob Overholt tells us what we need to watch out for.
vision issuesdr. bob overholtwbirdr. bob10news weekendthreats to visioneye healthNewsblurred vision10NewsEyes04:07